CVE-2023-45889
A Universal Cross Site Scripting (UXSS) vulnerability in ClassLink OneClick Extension through 10.8 allows remote attackers to inject JavaScript into any webpage.
Does this matter?
Lower severity and a low EPSS score (0.45%). Track it; it rarely justifies an emergency change on its own.
Description
A Universal Cross Site Scripting (UXSS) vulnerability in ClassLink OneClick Extension through 10.8 allows remote attackers to inject JavaScript into any webpage. NOTE: this issue exists because of an incomplete fix for CVE-2022-48612.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.45% probability · 39th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- classlink/oneclick
- Source
- cve@mitre.org
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://blog.zerdle.net/classlink/Third Party Advisory
- https://blog.zerdle.net/classlink2/Exploit, Third Party Advisory
- https://blog.zerdle.net/classlink/Third Party Advisory
- https://blog.zerdle.net/classlink2/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.